Should I just be this girl?

Even though it's not "me", should I just get my hair and nails done every couple of weeks, go shopping all the time, wear super feminine clothing, and settle for someone less attractive than me? I'm not extremely attractive or anything, but I've noticed all of my female friends date guys that are at least a couple rungs lower than them. Do I have to play my part, or be alone? If I were honest about my cynical outlook, I would drive guys away. Should I pretend that we're on the same page, and that I like Guitar Hero, sports, paintball, obnoxious bands, bowling, and steak? Should I pretend to want kids? Do I have to either play this role or be lonely? If I went along with what guys said 75% of the time when they're manipulating me, I might have a boyfriend by now. But it feels too gross to go along with manipulation when it's so obvious. I don't want someone to have to do that, and I don't want to have to pretend I don't notice.